Crazy Good Protein Brownie Recipe – You won’t believe these fudgy and decadent chocolate collagen brownies are gluten-free, sugar-free, and protein-rich.

Two collagen protein brownies stacked on a white plate.

Why We Love This Recipe

Life is all about balance, and we try to share a fairly equal number of crazy indulgent and super healthy recipes on the site. Because sometimes you want a gooey caramel brownie and other times you need a great vegan stir fry tempeh – and we love ’em both and everything in between in fair amounts.

Then there are those magical moments when you discover a recipe that perfectly combines decadence with a nutritious twist. Folks, THIS is one of those moments.

This Collagen Protein Brownies recipe… is SO ridiculously delicious! In fact, it’s so delicious you would have no idea that it is sugar-free, gluten-free, grain-free, and packed with protein and collagen.

Recipe Ingredients

  • Almond flour – for a soft crumb without gluten
  • Chocolate protein powder – or a mix of protein powder and collagen powder
  • Erythritol sweetener – instead of refined sugar, or coconut sugar
  • Cocoa powder – unsweetened and high-quality
  • Baking powder – for tender collagen brownies with a soft rise
  • Salt – a pinch to balance the sweetness
  • Butter – melted, or melted coconut oil
  • Eggs – room temperature are best for baking as they mix more easily into the batter
  • Vanilla extract – for the best-tasting brownie
  • Chocolate chips – your choice of keto-friendly or regular
Hand holding fudgy brownie to camera.

Nutrition Notes to Get Started

It’s really hard to determine the nutritional facts on this high protein brownies recipe because you have so many protein powder and collagen powder options to work with, all with varied nutritional information. (Such as whey protein, pea protein powders, and other plant-based protein forms.) Therefore, the nutritional facts in the recipe card below are just a guide. You will need to calculate the macros with the exact ingredients and brands you use if you stick to a strict diet.

You can use any sort of keto sweetener, OR don’t worry about the carbs and just add good old-fashioned granulated sugar. You can also use all chocolate protein powder, all chocolate collagen powder, or a combination of ½ cup of protein powder and ¼ cup of collagen powder to get an extra boost for your hips and joints. You can use melted butter for the fat in the recipe, or melted coconut oil for a dairy-free option, and you can use low-carb chocolate chips or regular chocolate chips. 

Even with all these healthy options, these brownies are rich and decadent – the perfect treat when you’re trying to stick to your low-carb high-protein diet!

Recipe ingredients in their packages: Flour alternative, sugar alternative, cocoa powder, collage peptides, sugar free chocolate chips.

How to Make Protein Brownies

Preheat the oven to 350°F. Set out a large mixing bowl and an 8 x 8-inch baking dish. Grease the baking dish on the bottom and sides of the pan. Set aside.

In the bowl, add the almond flour, protein powder, collagen powder if using, erythritol sweetener, unsweetened cocoa powder, baking powder, and salt.

Dry ingredients in a white bowl: cocoa powder, collagen, sweetener alternative, flour alternative.

Mix well to combine.

Then mix in the melted butter (or coconut oil), eggs, and vanilla extract.

Hand pouring melted butter and milk from glass measuring cup into bowl with dry ingredients and eggs.

Once smooth, mix in 3/4 cup of the chocolate chips.

The batter will be very thick and dense. Press the batter into the prepared baking dish, in an even layer. Sprinkle the remaining chocolate chips over the top.

Brownie batter spread into a square baking plan.

Bake for 25 to 30 minutes, until the center is puffy.

Get the Complete (Printable) Protein Brownies Recipe + Video Below. Enjoy!

Hand holding square pan of baked brownies dotted with chocolate chips.

Cool for at least 15 minutes in the dish before cutting and serving.

This protein brownie recipe makes 12 large or 16 smaller brownies.

Top down square pan of baked brownies dotted with chocolate chips.

Recipe Tips

Baking is a science, not an art: Be sure to use proper measurements and add ingredients as directed in the recipe.

Include other brownie add-ins like chopped walnuts or pecans or other flavored baking chips like peanut butter chips, mint chips, or caramel chips.

Do not over-mix the batter. Stir just enough to combine the ingredients, then stop. Over-mixing protein brownie batter will make super dense treats.

Also, do not overbake. Remove the brownies from the oven as soon as the edges are set and the center begins to puff up. Check the center with a knife or toothpick to see that it comes out clean.

This healthy brownie recipe is best if served at room temperature within the first 48 hours.

Two brownies with protein collagen stacked on a white plate.

Frequently Asked Questions

Is protein brownie good?

Yes, these are SO good! Perfectly dense, a bit chewy, crumbly… so much goodness. Plus, you get the added benefit of muscle-building protein without refined sugars or heavy carbs.

What is the difference between chewy and fudgy brownies?

A fudgy brownie will have a soft, almost gooey center that feels nearly underbaked – but isn’t. Chewy brownies, on the other hand, are baked solid throughout and have a bit of chew to the bite.

Is it cheaper to make brownies from scratch?

Depending on the ingredients you purchase and compared to what store-bought brands we’re talking about, yes it can be much cheaper to make brownies from scratch. We are BIG fans of our homemade Ghirardelli Brownie Mix!

How long do homemade brownies last?

They are best if served within the first 48 hours. Wrap very well and store in an airtight container if planning to save for several days.

Can you freeze brownies after you make them?

Typically brownies freeze well for up to 3 months. However, protein brownies made with collagen won’t hold their nice texture quite so well if frozen and thawed. So, yes, you can technically freeze them by wrapping them in plastic wrap and sealing them in an airtight zipper bag – but I don’t really recommend doing so.

Hand holding fudgy brownie with bite to camera.

Looking for More Healthy Dessert Recipes? Be Sure to Also Try:

Two collagen protein brownies stacked on a white plate.
Print Recipe
5 stars (3 reviews)
Leave a Review »

Protein Brownies with Collagen Recipe + Video

Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
You won't believe these fudgy and decadent collagen brownies are gluten-free, sugar-free, and protein-rich!
Servings: 12 – 16 pieces

Ingredients

Instructions

  • Preheat the oven to 350°F. Set out a large mixing bowl and an 8 x 8-inch baking dish. Grease the baking dish on the bottom and sides of the pan. Set aside.
  • In the large bowl, combine the almond flour, protein powder, collagen powder if using, erythritol sweetener, unsweetened cocoa powder, baking powder, and salt. Mix well to combine.
  • Then mix in the melted butter (or coconut oil), eggs, and vanilla extract. Once smooth, mix in 3/4 cup of the chocolate chips.
  • The batter will be very thick and dense. Press the batter into the prepared baking dish, in an even layer. Sprinkle the remaining chocolate chips over the top.
  • Bake for 25 to 30 minutes, until the center is puffy. Cool for at least 15 minutes in the dish before cutting and serving.

Video

Notes

This recipe makes 12 large or 16 smaller brownies. But I guarantee you want to eat them all. They are best if served within the first 48 hours. Wrap very well and store in an airtight container if planning to save for several days.
Note: It’s really hard to determine the nutritional facts on this recipe because you have so many options to work with… Therefore, the nutritional facts here are just a guide. You will need to calculate the macros with the exact ingredients and brands you use to stick to a strict diet.

Nutrition

Serving: 1large brownie, Calories: 240kcal, Carbohydrates: 26g, Protein: 7g, Fat: 19g, Saturated Fat: 10g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 3g, Trans Fat: 0.4g, Cholesterol: 74mg, Sodium: 168mg, Potassium: 141mg, Fiber: 4g, Sugar: 1g, Vitamin A: 351IU, Calcium: 87mg, Iron: 2mg
Course: Dessert
Cuisine: American, Keto, Low Carb
Author: Sommer Collier
Making this recipe?Follow us on Instagram and tag @ASpicyPerspective so we can share what you’re cooking!

Share This Recipe With Friends!